<template>
	<view>
		<my-search @click='goSearch'></my-search>
		<view class="scroll-view-container">
			<!-- 左侧视图区域 -->
			<scroll-view scroll-y="true" class="left-scroll-view" :style="{height:wh+'px'}">
				<block v-for="(item,index) in cateList" :key="index">
					<view :class="['left-scroll-view-item',index ===active ?'active':'']" @click="activeChanged(index)">{{item.cat_name}}</view>
				</block>
			</scroll-view>
			<!-- 右侧视图区域 -->
			<scroll-view scroll-y="true" class="right-scroll-view" :scroll-top="scrollTop" :style="{height:wh+'px'}">
				<view class='cate-lv2' v-for="(item,index) in cateLevel2" :key="index">
					<view class="cate-lv2-title">/ {{item.cat_name}} /</view>
					<!-- 三级分类 -->
					<view class="cate-lv3-list">
						<view class="cate-lv3-item" v-for="(item2,index2) in item.children" :key=index2 @click='gotoGoodsList(item2)'>
							<image :src="item2.cat_icon.replace('api-ugo-dev','api-ugo-web')"></image>
							<text>{{item2.cat_name}}</text>
						</view>
					</view>
				</view>
			</scroll-view>
		</view>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar-badge.js'
	export default {
		mixins:[badgeMix],
		data() {
			return {
				 cateList: [],
				 active:0,
				 cateLevel2:[],
				 scrollTop:0,
				 wh:0
			}
		},
		onLoad(){
			const sysInfo = uni.getSystemInfoSync()
			this.wh = sysInfo.windowHeight
			this.getCateList()
		},
		methods: {
			async getCateList() {
			    // 发起请求
			    const { data: res } = await uni.$http.get('/api/public/v1/categories')
			    if (res.meta.status !== 200) return uni.$showMsg()
			    this.cateList = res.message
				this.cateLevel2 = res.message[0].children
			  },
			activeChanged(i){
				this.active = i;
				this.cateLevel2 = this.cateList[i].children
				this.scrollTop = this.scrollTop ? 0.1 : 0
			},
			gotoGoodsList(item){
				uni.navigateTo({
					url: '/subpkg/goods_list/goods_list?cid='+item.cat_id,
				});
			},
			goSearch(){
				uni.navigateTo({
					url: '/subpkg/search/search',
				});
			}
		}
	}
</script>

<style lang="scss">
.scroll-view-container{
	display: flex;
	.left-scroll-view{
		width: 120px;
		.left-scroll-view-item{
			line-height: 60px;
			background-color: #f7f7f7;
			text-align: center;
			font-size: 12px;
			&.active {
				background-color: #ffffff;
				position: relative;
				&::before{
					position: absolute;
					display: block;
					width: 3px;
					background-color: red;
					height: 30px;
					content: '';
					top:50%;
					left: 0px;
					transform: translateY(-50%);
					}
			}
		}
	}
	.right-scroll-view{
		.cate-lv2-title {
		  font-size: 12px;
		  font-weight: bold;
		  text-align: center;
		  padding: 15px 0;
		}
		.cate-lv3-list{
			display: flex;
			flex-wrap: wrap;
			.cate-lv3-item{
				display: flex;
				flex-direction: column;
				width: 33.3%;
				align-items: center;
				image {
				     width: 60px;
				     height: 60px;
				   }
							
				   text {
				     font-size: 12px;
				   }
			}
		}
	}
}

</style>
